Influence of eave length and diffusion on window in the school classroom onto an annual heat load and a daylight illumination

摘要

It is important to know how to balance the energy saving and the illumination environment in classroom for improving the condition of learning. This paper shows the influence of the eaves length and the diffusion of the window to heat load and the indoor illumination distribution in a school classroom.As results of numerical calculation, we show a possibility that illumination environment could be improved although the heat load slightly increased by establishing the eaves and addition of the diffusion instrument.